Final space shuttle launch will be the end of an era [video]

Born out of a grand vision of space exploration after the Apollo moon missions, NASA's manned space vehicle, Columbia, lifted off from Kennedy Space Center in 1981. The final flight of Atlantis will mark the end of the space shuttle era after 135 missions.(/Alexandra Garcia, AJChavar, Jason Aldag, SohailAl-Jamea and Joel Achenbach)